What is the best method to purge with CO2?

Homebrew Talk - Beer, Wine, Mead, & Cider Brewing Discussion Forum

Help Support Homebrew Talk:

HairyDogBrewing

Well-Known Member
Joined
Feb 15, 2008
Messages
571
Reaction score
5
Location
Mechanicsburg, PA
I'm going to rack into a carboy this weekend.
I thought I'd run a cane through a carboy cap
and push in 30 seconds of cold CO2 in at 1 or 2 psi.

Discuss, please.

BTW This site rocks. :rockin:
Thanks to all the experts for sharing.
And, especially, thanks to all the (other) noobs
for asking questions.:)
 

BierMuncher

...My Junk is Ugly...
Lifetime Supporter
Joined
Jan 17, 2007
Messages
12,443
Reaction score
938
Location
St. Louis, MO
There's no need to purge a secondary vessel.

The very brief exposure to air will not affect the beer. Once the beer is racked, the beer is going to continue to produce enough CO2 to blanket and protect the beer.

Oxidation is more of a risk with extended exposure to oxygen.
 

EdWort

Well-Known Member
Joined
Jul 14, 2006
Messages
11,894
Reaction score
446
Location
Bee Cave, Texas
I have a MLF fitting on the end of the hose for my CO2 bottle. That way I can unscrew the ball lock connector if I want to purge bottles and such. Like the Muncher says, you don't need to worry, but if you want, you can just put the hose in the neck of the bottle and give it a 5 second shot. The CO2 will layer in the bottom just fine.
 

Yooper

Ale's What Cures You!
Staff member
Admin
Mod
Lifetime Supporter
Joined
Jun 4, 2006
Messages
74,923
Reaction score
12,807
Location
UP/Snowbird in Florida
I have a MLF fitting on the end of the hose for my CO2 bottle. That way I can unscrew the ball lock connector if I want to purge bottles and such. Like the Muncher says, you don't need to worry, but if you want, you can just put the hose in the neck of the bottle and give it a 5 second shot. The CO2 will layer in the bottom just fine.
EdWort, do you have a picture of what you mean? That sounds like a great idea, for purging bottles before sending them to competitions. But I can picture what you are describing.
 

EdWort

Well-Known Member
Joined
Jul 14, 2006
Messages
11,894
Reaction score
446
Location
Bee Cave, Texas
EdWort, do you have a picture of what you mean? That sounds like a great idea, for purging bottles before sending them to competitions. But I can picture what you are describing.
My kegerator in the house uses the same 1/4" MLF fittings. It makes for easy cleaning too. I only screw it on hand tight and no leaks. I can take it off to purge bottles, carboys, or growlers in a snap.

 
Top